HAAT Calculator & Elevation Finder

Calculate elevation and height above average terrain (HAAT) using the FCC's API.

NAD83 Latitude:
- ' " *

NAD83 Longitude:
- ' " *

Radiation Center Height:
meters   *

- Above Mean Sea Level (RCAMSL)
- Above Ground Level (RCAGL)

Number of Radials:

Terrain Database:

Legacy FCC30 terrain is not available through the FCC API. Use the FCC HAAT Calculator instead.

Station Class for ERP Check: (optional)

Decimal Coordinates:
Latitude: 38.386778
Longitude: -75.290472

Site Elevation:
9.65 meters

Radiation Center Above Mean Sea Level (RCAMSL):
159.2 meters

Height Above Average Terrain:
149 meters, based on 8 radials.
(rounded from 149.42 m)

HAAT Along Each Radial:

Azimuth HAAT
0147.96
45149.57
90154.28
135152.76
180151.15
225148.27
270144.13
315147.22